US Patent Issued to Asahi Kasei on Nov. 18 for "Ultrahigh-molecular-weight polyethylene powder and molded article prepared by molding the same" (Japanese Inventor)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,385, issued on Nov. 18, was assigned to Asahi Kasei K.K. (Tokyo).

"Ultrahigh-molecular-weight polyethylene powder and molded article prepared by molding the same" was invented by Koichi Tsujimoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an ultrahigh-molecular-weight polyethylene powder having a viscosity-average molecular weight (Mv) of 10x104 or higher and 1000x104 or lower, having a difference of 3deg C. or more between a swelling onset temperature and a dissolution onset temperature determined by a specific method, and having a rate of impregnation with liquid paraffin (rate of increase in weight) of 0.5% or more and 5.0%...